Earth

Fifteen communities set records for the number of days with such floods last year

Climate action today will take decades to manifest in global temperatures because of “climate inertia”

Old, big trees are dying faster than in the past, leaving younger, less biodiverse forests that store less carbon worldwide.

Many species are known to have changed their migration routes in response to the changing climate. They now include mule deer and Bewick’s swans.

Here are some brief reports about science and technology from around the planet, including one about a 70-million-year-old mollusk fossil that reveals years back then had a few more days than we have now.

Ancient ice and sediment samples show that extensive sea ice in the past helped halt the rise of carbon dioxide

Biological oceanography expert Miriam Goldstein talks about issues facing the oceans. Reporter Adam Levy discusses air pollution info available because of the pandemic. And astrophysicist Andrew Fabian chats about black holes.

Narwhals, recognizable by their large single tusk, make distinct sounds that are now being analyzed in depth by researchers.

Fine dust from the burning rain forest could exacerbate coronavirus infections amid signs that the blazes might be particularly severe in 2020

How this thin layer of aerosol particles might impact global climate remains to be seen

We say so long to the Scientific American blogs network. But this isn’t goodbye!

An Arctic heat wave ushered in the start of the melt season two weeks earlier than average